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(No Model.) 4 Sheets-Sheet 1. J. BfiGHE,Jr. FILE CUTTING MACHINE.

N0. 531,251. Patented 1360.18, 1894 0, e w w J 1 2M a .THE cams Farm;00., PHqTmLn'HQ. vnsmncrou. u. c.

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J.BE0HE,J1-. FILE CUTTING MAGHINE.

N0. 531,251. Patented Dec. 18, 1894.

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(No Model.) 4 Sheets-Sheet 3. J.BE0HB,J1-. FILE CUTTING MACHINE;-

NO. 531,251. Patented Dec. 18,1894.

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J.BECHE,JL v FILE CUTTING MACHINE. No. 531,251.

Patented Dec. 18, 1894.

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U ITE STATE "PATENT Qiirlcn.

JEAN BECHE, JR, OF HUOKESWAGEN, GERMANY.

FlLE-CUTTlNG MACHINE.

SPECIFICATION forming part of Letters Patent No. 531,251, dated Decemberis, 1894.

Application filed March 14,

To all. whom it may concern:

Be it known that I, JEAN BficHfi, J12, a subject of the King of Prussia,German Emperor, and a'resident'of Hiickeswagen, inthe Prov ince of theRhine, Kingdom of Prussia, German Empire, 'have invented certain new anduseful Improvements in File-Cutting Maphines, of which the following isa specificaion.

This invention refers to machines for providing files automatically withthe cuttings,

and my improvements in such machines re-' late, first, to means forvarying the force of the blows of the cutting-chisel automatically aswell as by hand; and second, to means for effecting the intermittentmotion of the file during cutting, as will be more fully describedhereinafter.

In order to make my invention more clear, I refer to the accompanyingdrawings, in which similar letters denote similar parts throughoutthedifferent views, and iriwhich- Figure 1 shows the front-view of theimproved machine, the cylinder on the top be ing in section, and theleft-hand part of the file-cutting-bed being broken off. a Fig. 2shows'a' side-viewof the machine. Fig. 3 is a plan of the lower part ofthe machine, the

section being taken on line l 7'-18 of Fig. 1. Fig. 4: is the front-viewof the lower part of the machine, the left hand part of thefilecutting-bed, as well as the upper part of the frame being brokenoff. Figs. 5, (Sand 7 are details belonging to the upper part of themachine. Figs 8 and 9 are front-views of the intermittentgearing-device. Fig. 10 is an upper view'of the'same. Figs 11, 12,13 and14 are left handside-views and right hand side views of thegearing-devices in two positions corresponding to Figs. 8 and -9.- Figs.

v 15 and 16 are details of the gearing-device.

The base (1., Figs. 1 to 3, of the machine carries besides the frameproper a a special bed a of oblique configuration, forming thefilecutting-bed. This bed contains a slide 1) with a specialbearing-piece b, to which is secured the file c to be cut.

may be intermittently moved upward by means'of ascrewed-spindle d, Fig.2, as will be more fullydescribed hereinafter.

The chisel c, Fig 2, by means of which the cuttings on the file areproduced, is attached The said slide 1894. seanm.5os,ess. (NomodeL) toastrong bar f, the upper end of which ex= tends into the cylinder a atthe top of the frame as seen in Fig. 1. A cam g, Figs. 1 and 2, fixed toshaft 9 and driven from pulley g acts intermittently on a projection fsecured to bar f, so thatthereby this bar-is alternately raised andreleased, together with chisel e. The latter on each fall produces a cuton file c. The force 'ofthe blow is given not only by the weight of barf, but. mainly by the reacting elasticityof an india-rubberblock h,Fig. 1. per end by the cylinder-cover afiand isc'ompressed from below bythe action of cam g parts when coming under the chisel will not receiveas powerful blows as the other parts, as the height of stroke of bar 1is reduced then corresponding to the greater thickness of the file. Tocompensate this, the indiarubber block it should be compressed in acorrespondingly higher degree, which is antomatically eifected by thefollowing arrange ment: A ledge '11, Figs. 1 and 2, the shape of whichis dependent on that of the respective file, is attached to slide b, andacts ona roller is, secured to the lower end of a rod is. v This rodextends upward beyond cylinder a Fig. 2, and is connected at this endwith an axle Z by means of a lever-arm Z, Figs. 5 to 7. The other end ofsaid axle carries an eccentric Z adapted to serve as fulcrum for adoublearmed lever m m. Arm m is connected by link m .with the movablecylinder-covera above block h, while arm m is movably connected with aspindle n, the lower threaded end of which extends through the long naven of ahand-wheeln by the projecting part of ledget' (which, as a matterof course, occurs always when a thicker portion of the body of a filecomes under the chisel), shaft 1 will be turned in such a direc- Thisblock is held at its up- If, now, rod k is raised tion by lever arm Z,Fig. 5, that eccentric Z however, the force of the blows is -to healtered by hand, the wheel n is turned, so that rod n is lowered andraised, accordingto the 'In either direction of rotation of said wheel.case, eccentric Z will form then the journal for lever m m, and thelatter thus will raise or lower the cover a.

The file is held in position duringcutting by a presser-roll 0, Figs. 1,3 and 4, held by an arm 0'. The latter is secured to a shaft 0 which hasfixed to it along lever-arm o carrying at its end a weight 0 by theinfluence of which latter the roll 0 isstronglypressed onto the file andthe fileonto itsbed, on which it is held by friction. If, afterfinishing-eutting, the slide with thebed'shallbe brought back to itsformer, initial position (whichiis effected by hand in a mannerafterward explained), it becomes necessaryto free thesame from thepressure of roll o,as-o therwise the said backward movement would berendered difiicult by that pressure. This is more the case, since thepressure exerted by the heavy barf must be considered. In order, now, torelease the slide from those twopressnrcs, lever 0 is connected by meansof a-linko with a lever-arm 0 fixed to a shaft 0". Thefrontend of thisshaft carriesahand lever-oi Figs. 2 and 3, by means of which leveroQandlink 0 may be moved from the .positionimFig. 1 into that shown inFig. 4. Theparts-inquestion are held in this position by a thumbo, Fig.4, fixed to shaft 0 Roll 0 has then leftthe file, so that thelatterisfneed from thedraft of weight 0 Lever o then=beingin the positionshown in Fig. 4 has liftedalso-roll k a short distance from ledge 11bypushingag-ainst a projection Fig. :2, forminganelongation of thejournal of roll 70 in the lowerendof rod is.

There remains now to be described the mechanisms for movingthe-spindlein' one or the other direction, by power or by hand, which isperformed by aid 10f the following arrangement: The inclinedspindle dcarries at its upper end a bevel-wheelp meshing with a like wheel19-,Figs. 8 toll), on shaftp The latter carries at its righthand end aratchet wheel 10 Figs. 8 to 10 and 15, into which takes apawl 10attached to aleverp Tihelatter is looselyfulcrumed on shaft ot-andisosoillated from shaft 9', Figs. 1-and2, by eccentric g andeccentric-rod g shaft'p is thus, intermittently rotated in the samedirection. It now, the file has been cut-and-slide b b is to be movedback to its formeninitialposition, the gearing-between ratchet pand-pawl p must be interrupted forthat time. For this ratchet-wheel 19and pawl-leverp, isprovided with cogs on but a part of itscircumference, and "carries opposite theretoa curved projection or ledge'1" (Figs. 15 and 16) that is adapted to lift pawl 13 out of theratchets and hold it off therefrom, as represented in Fig. 16- Wheel 0'meshes with a similar wheel 7' having but as fewteeth as necessary forturning wheel r with ledge 1" from the position shownin Fig. 15 intothat shown in Fig. 16. WVheel r isfixed to the right hand end of a shaftr Figs. 8, 9, 11 to 16, which at its other end carries a weighted lever1 Figs. 8, 9, '11 and 13, the purpose of which is to maintain ledge r ofwheel 1 in either of its two end-positions, the position of lever r inFig. 13 corresponding tothat of ledge 'r' in Fig. 15, while Fig. 11corresponds to Fig. 16.

Thelefthandend of shaft'p carries a cogwheel e,Figs. 9and 10, meshingwith a cogwheel s on shaft etFigs. 8 to 10and 11 to 14. l hisshaft islongitudinally displaceable in its bearings, and has a hand-wheel s -bymeansof which it maybe turned. Normally, the shaft s has the positionshown in Fig. 8, in whichthe co -wheels s s' are out of gear. They areprevented from coming spontaneouslyintogear -by a thumb 6, Figs. 8 and11, forming part of a sleeve t fixed to shaft 4. This thumb iswedge-like, its-edge being at that rim, wh-ich first touches the side ofcog wheel s Figs. Sand 11, when the thumb is moved from itsposition ofrest, Fig. 13, to its working position, Fig. 11. The thumb is alsousedfonkeeping'the said two wheels in gear after shaft s has heendisplaced to the right. This iselfeeted by first changing the positionof the weighted-lever r so that the latter gets the position shown inFig. 13, then displacing the shaft s with wheel 3, sothat this wheelcomesin-to gear with cog-wheel s, and finally changingthc position oflever 1' again, so that thumb t of sleeve t' is laidnow against theother side of cog-wheel e, as to be seen in Fig. 9. Inorder to effectthat, bevel-wheel p with spindle d iinstantly ceases turning when ,pawl19 has ceased to act on the ratchetwheel 11 (for the purpose of getting,perfectly equal and sharpcuttings), the nave of wheel 19 is toitsgreatestpart surrounded by astrong spring w, Figs. 8 and 9, the twolegs 11) w of which are forked and embrace the shaft 8 as shownin dottedlines inFigs. Hand 13. Leg w'iof'sprihgw isprevented from giving waytothe left sideby apin w screwed into the frame of themachine, while theother leg can be moved a short way left hand by a swell s of shaftsevery time whenthis shaft is set outof gear "with shaft 10 .(by thecogwheels 3' s). The spring to w 20 is then pressed on the nave of wheel19, so as to act nowas a brake with rcgardto this wheel, and toipreventuntlne movements of the latter. The braking power-is, however, not sogreat astointerfere with the-proper intermediate rotation of spindle dbylpawl p and ratchetwheel'p". If,afterward,rshaft e is displaced to theright l (Fig. 9),the swell s leaves the hand-wheel s is not hindered.

Having thus fully described the nature of this invention, what I desireto secure by Letters Patent of the United States is '1. In afile-cutting machine, the combination with a chisel-barf adapted to beraised intermittently, of an elastic body It adapted to be compressed orstrained by the raised chisel bar, and to strengthen the blows of thesame; a counter bearing a for said elastic body; a double-armed lever mm connected with one end to said counter-bearing; an eccentric Z holdingsaid double-armed lever, and adapted to raise 'and lower the same; a

drawor push rod n connected with the other end of said lever, andadapted to turn the latter on said eccentric; a lever 1' connecting theshaft of said eccentric with a rod 70' arranged parallel to thechisel-bar; and an exchangeable ledge i arranged on the file-bed andadapted to displace said rod longitudinally, substantially and for thepurpose as described.

2. In a file cutting machine, the combination with a chisel-bar fadapted to be raised intermittently, of an elastic body it adapted to becompressed or strained by the raised chisel bar, and to strengthen theblows of the same, a counter bearing a for said elastic body; adouble-armed lever m m connected with its one end to saidcounter-bearing; an

onto said bed by the mediation of a roller 0;

and a lever 0 having a thumb 0 and connected by a link 0 with saidweighted lever; the latter being adapted to be held in'raised positionby said thumb, and to raise in its turn the said rod is, substantiallyand for the purpose as described.

3. In a fileeutting machine, the combination with a chisel-bar f adaptedto be raised intermittently, of an elastic body It adapted to becompressed or strained by the raised chisel-bar, and to strengthen theblows of the same; a counterbearingfot for said elastic body; adouble-armed lever on 9% connected with its one end to saidcounter-bearing; an eccentric Z holding said double-armed lever, andadapted to raise and lower the same; and a drawor push-rod 7 connectedwith the other end of saidlever, and adapted to turn the latter on saideccentric; a lever'l' connecting the shaft of said eccentric with a rod70' arranged parallel to thechisel-bar; an exchangeable ledge i arrangedon the file-bed, and adapted to displace said rod longitudinally, a rod9 connecting an eccentric g on the shaft g with a lever 19 carrying apawl 19; a shaft 19? having a ratchet-wheel p operated by said pawl. anda bevel-wheel p gearing with a bevelwheelp on a threaded spindledadapted to intermittently displace the file-bed b b; a rotatable ledge1" adapted to disengage pawl p from ratchet-wheel 19 a shaft r carryinga weighted lever r, and a cog-wheel r gearing with a like wheel 1'carrying the said ledge r, substantially and for the purpose as described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

JEAN BEOHE, JR. Witnesses:

' WM. EssENWEIN,

F. H. STRAUSS.

